The founder and head of Facebook mark Zuckerberg has apologised for failing to track the expected interference of Russia in the U.S. presidential election and the leakage of user data. This is stated in the testimony sent by Zuckerberg to the Committee on energy and Commerce of the house of representatives of the United States. The statement published on the website of the house of representatives.

The social network has not done enough to prevent the use of its functional detriment, says Zuckerberg. “We are talking about fake news, foreign intervention in the elections, hate speech and data protection,” he says.

Facebook was too slow to notice the intervention of Russia and time to stand up to him, said the head of the social network. Zuckerberg said that the social network continues to cooperate with the U.S. government to detect the Russian intervention. The head of Facebook apologized for the errors and details described two scandals in which were involved his brainchild.

First launched in Facebook a misinformation campaign using fake profiles supported by the Agency for Internet studies. According to the social network, from 2016, these accounts generate about 80 thousand posts, who could see the 126 million users. At the same time, the Agency bought political advertising in Facebook and Instagam, she could be seen around 11 million users. Press Secretary of the President of Russia Dmitry Peskov denied any involvement of Moscow to the placement of political advertising in social networks.

Zuckerberg also once again recognized a major leak of personal data, which was used by Cambridge Analytica, specializing in political consulting. According to the social network, the researcher Aleksandr Kogan created an application with a survey, which found about 300 thousand users. Users it was presented as the originator of the “psychological portrait”. The service uses personal data of users, and then received information about 10 million friends of those users.

According to the latest data, so Cambridge Analytica could collect personal data 87 million users of Facebook. The Corporation acknowledged that Cohen acted with employee Facebook Joseph Cancellaro. Together they founded the Global Science Research, which provided information Cambridge Analytica.

After the scandal, the social network promised to ban third-party applications access to user data.

11 April Zuckerberg will speak to Congress, where, as planned, “will shed light on critical problems of management of personal data and the protection of privacy, as well as help Americans better understand what happens to their data online.”